The observable universe contains so much matter and so many planets that, if it extends infinitely, identical copies of people could exist somewhere else.

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

Evidence of this quantum layer may be coming soon. Here’s what you’ll learn in this story: Physicists are still puzzling over ...

Upon first arrival at Epic Universe, park goers will step into the Chronos, a portal that opens up to the five worlds. The first world to greet visitors is Celestial Park, the heart of Epic Universe, ...

If you consider yourself a fan of high fantasy, I would be willing to bet that there is a good chance you have at least heard the name "Brandon Sanderson" even if you have never read one of his books.